#include "stdio.h"

int twoDigitAdd(int a, int b) {
    //在此处添加相应代码
int c=0;
	a = a%100;
	b = b%100 ;
	c=a+b;
	if (c>=100)
		c=c-100;
	else 
	c=c;
	return c;
    }

int main(void)
{
    int a = 45;
    int b = 56;
    printf("%d add %d is %02d", a, b, twoDigitAdd(a, b));
    return 0;
}

